CN101793358A - Coaxial lighting AOI light source device - Google Patents
Coaxial lighting AOI light source device Download PDFInfo
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- CN101793358A CN101793358A CN201010109131A CN201010109131A CN101793358A CN 101793358 A CN101793358 A CN 101793358A CN 201010109131 A CN201010109131 A CN 201010109131A CN 201010109131 A CN201010109131 A CN 201010109131A CN 101793358 A CN101793358 A CN 101793358A
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Abstract
The invention discloses a coaxial lighting AOI light source device. The device comprises a coaxial light fixed plate, a diffusion plate, a semi-permeable mirror, four groups of LED lamp panels, an upper cover, a middle cover and a lower cover, wherein the four groups of the LED lamp panels are a first group of the LED lamp panels, a second group of the LED lamp panels, a third group of the LED lamp panels and a fourth group of the LED lamp panels respectively from top to bottom in turn; the diffusion plate, the semi-permeable mirror and the first group of the LED lamp panels are respectively arranged on the coaxial light fixed plate; the semi-permeable mirror has an inclined mirror body; the first group of the LED lamp panels are positioned on one side of the semi-permeable mirror; the diffusion plate is arranged between the semi-permeable mirror and the first group of the LED lamp panels for separating; distance between the diffusion plate and the semi-permeable mirror forms an epi-illumination area; the second, the third and the fourth groups of the LED lamp panels are respectively arranged on the upper, the middle and the lower covers respectively; and the upper, the middle and the lower covers are arranged below the epi-illumination area sequentially from the top to the bottom. The coaxial lighting AOI light source device has the advantages of providing an all-angle lighting environment, and better displaying image characteristics in an AOI detection field, along with rational structure.
Description
Technical field
The present invention relates to the led light source device, be specifically related to a kind of coaxial lighting AOI light source device.
Background technology
In the whole process of production in fields such as electronics production, SMT surface mount, all need the electronic component that relates to, paster etc. are carried out the Quality Detection and the quality management and control of outward appearance, irradiation by light source comes detecting element, paster surface whether to have defective, to get rid of non-compliant element, paster, avoid the waste that the later stage does over again, and existing AOI light supply apparatus adopts LED to shine as light source more.
But, be subjected to traditional AOI light supply apparatus structure influence, when taking, its imaging source is taken the hole site because must keep, and makes that taking the below, hole is lighting blind zone, field-of-view image and other position image difference of taking the below, hole are very big, have a strong impact on automated optical and detect effect.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of rational in infrastructure, can provide the lighting environment of full angle, to embody the coaxial lighting AOI light source device of AOI detection range characteristics of image better.
The object of the present invention is achieved like this:
Coaxial lighting AOI light source device, comprise the axis light fixed head, it also includes diffuser plate, pellicle mirror, four groups of LED lamp plates, last cover, middle cover and following cover, described four groups of LED lamp plates position from high to low are respectively first group of LED lamp plate in order, second group of LED lamp plate, the 3rd group of LED lamp plate and the 4th group of LED lamp plate, described diffuser plate, pellicle mirror and first group of LED lamp plate are installed in respectively on the axis light fixed head, pellicle mirror is the flat inclined mirror body, first group of LED lamp plate is positioned at pellicle mirror one side, and being provided with diffuser plate between pellicle mirror and the first group of LED lamp plate is separated by, the spacing of diffuser plate and pellicle mirror constitutes and falls to penetrating the interval, second, three, four groups of LED lamp plates are installed in respectively, in, on following three cover bodies, and on, in, following three cover bodies are arranged in order from high to low and fall to penetrating interval below; This kind of coaxial lighting AOI light source device, by shining from different perspectives with four groups of led light sources, first group of LED lamp plate is luminous from the side, see through diffuser plate, shine the pellicle mirror of flat inclined mirror body, because pellicle mirror is semi-transparent eyeglass, but it is a kind of semi-transparent eyeglass of band removal of images ghost image coating, most of light is reflexed on the illuminated object by pellicle mirror, and the coaxial illumination that falls to penetrating is provided; The light of second layer LED lamp plate then shines directly on the object, eliminate the lighting dead angle between first group and the 3rd group of LED light, the 3rd group and the 4th group of LED lamp plate then provide the low angle illumination of differentiation, embodying object height changes on the photographic images feature, the lighting environment of full angle can be provided, overcome in the prior art because of taking the below, hole and be lighting blind zone, and make field-of-view image and other position image difference of taking the below, hole very big, have a strong impact on the deficiency of automated optical detection effect; And, whole AOI light supply apparatus, reasonably with four groups of LED lamp plates according to height, angle position, constitute the light tube group of approximate arc shooting, it is simple and reasonable for structure.
Purpose of the present invention can also adopt following technical measures to solve:
As scheme more specifically, described axis light fixed head comprises the pellicle mirror fixed head, diffuser plate fixed head and first group of LED lamp plate fixed head, pellicle mirror fixed head and first group of LED lamp plate fixed head are vertical plate body, and branch is located at a left side, right both sides, the diffuser plate fixed head is horizontal plate body, and be located at the top of first group of LED lamp plate, the holding of pellicle mirror lower end is in the bottom of pellicle mirror fixed head, the pellicle mirror upper end offsets with diffuser plate fixed head front end, diffuser plate and first group of LED lamp plate are vertical the setting, and their vertical height equates with the vertical height at pellicle mirror two ends, so that first group of LED lamp plate is luminous from the side, see through diffuser plate, pellicle mirror, be reflected on the illuminated object, the coaxial illumination that falls to penetrating is provided.
As further improving, described second group of LED lamp plate is horizontally set, and its two ends are installed in the lower end of light splitting piece and diffuser plate so that diffuser plate, pellicle mirror and second group of LED lamp plate surround the right angle trigonometry shape fall to penetrating the interval.
As three more specifically plans of establishment of cover body, three cover bodies in described upper, middle and lower are with coaxial form, from top to bottom be connected and fixed respectively, and are located at the bottom of axis light fixed head.
The center of described pellicle mirror and second and third and the four groups of LED lamp plates point that hangs down is on same the axis.
Described first and second groups of LED lamp plates are the red LED lamp plate, and third and fourth group of LED lamp plate is respectively green LED lamp plate and blue LDE lamp plate.
As further improving, described second and third, the LED diode on four groups of LED lamp plates sets up separately by two side positions, and between them according to the height, the angle position, constitute the light tube group of approximate arc shooting, the light that promptly guarantees second layer LED lamp plate shines directly on the object, eliminate the lighting dead angle between first group and the 3rd group of LED light, can make the 3rd group and the 4th group of LED lamp plate then provide the low angle illumination of differentiation again, embody object height and change on the photographic images feature, the lighting environment of full angle can be provided.
Described pellicle mirror top also is provided with diaphragm, so that by this diaphragm testee is taken.
The angle of described pellicle mirror and horizontal direction is 45 degree, belongs to the best angle setting of pellicle mirror, at this moment reflecting effect the best of pellicle mirror.
The invention has the beneficial effects as follows:
Coaxial lighting AOI light source device of the present invention, by shining from different perspectives with four groups of led light sources, first group of LED lamp plate is luminous from the side, see through diffuser plate, shine the pellicle mirror of flat inclined mirror body, because pellicle mirror is semi-transparent eyeglass, but it is a kind of semi-transparent eyeglass of band removal of images ghost image coating, most of light of first group of LED lamp plate is reflexed on the illuminated object by pellicle mirror, and the good coaxial illumination that falls to penetrating is provided; The light of second layer LED lamp plate then shines directly on the object, eliminate the lighting dead angle between first group and the 3rd group of LED light, the 3rd group and the 4th group of LED lamp plate then provide the low angle illumination of differentiation, embodying object height changes on the photographic images feature, the lighting environment of full angle can be provided, overcome in the prior art because of taking the below, hole and be lighting blind zone, and make field-of-view image and other position image difference of taking the below, hole very big, have a strong impact on the deficiency of automated optical detection effect; And, whole AOI light supply apparatus, reasonably with four groups of LED lamp plates according to height, angle position, constitute the light tube group of approximate arc shooting, it is simple and reasonable for structure.
Description of drawings
Fig. 1 is the partition structural representation of coaxial lighting AOI light source device of the present invention;
Fig. 2 is the cutaway view of coaxial lighting AOI light source device of the present invention;
Fig. 3 is the cover body of AOI light supply apparatus of the present invention and the shell schematic diagram that the axis light fixed head constitutes.
Fig. 4 is the shooting schematic diagram of coaxial lighting AOI light source device of the present invention.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of coaxial lighting AOI light source device, comprise the axis light fixed head, it also includes diffuser plate 9, pellicle mirror 10, four groups of LED lamp plates 8,6,4,2, last cover 5, middle cover 3 and following cover 1, described four groups of LED lamp plates 8,6,4,2 from high to low the position be respectively first group of LED lamp plate 8 in order, second group of LED lamp plate 6, the 3rd group of LED lamp plate 4 and the 4th group of LED lamp plate 2, described diffuser plate 9, pellicle mirror 10 and first group of LED lamp plate 8 are installed in respectively on the axis light fixed head, pellicle mirror 10 is the flat inclined mirror body, first group of LED lamp plate 8 is positioned at pellicle mirror 10 1 sides, and being provided with diffuser plate 9 between pellicle mirror 10 and the first group of LED lamp plate 8 is separated by, the spacing of diffuser plate 9 and pellicle mirror 10 constitutes and falls to penetrating interval 20, second, three, four groups of LED lamp plates 6,4,2 are installed in respectively, in, following three cover bodies 5,3, on 1, and on, in, following three cover bodies 5,3,1 is arranged on the below that falls to penetrating interval 20 from high to low in order, and the top of described pellicle mirror 10 also is provided with can be for taking the diaphragm 12 that uses.
Above-mentioned axis light fixed head comprises pellicle mirror fixed head 13, diffuser plate fixed head 11 and first group of LED lamp plate fixed head 1, pellicle mirror fixed head 13 and first group of LED lamp plate fixed head 1 are vertical plate body, and branch is located at a left side, right both sides, diffuser plate fixed head 11 is horizontal plate body, and be located at the top of first group of LED lamp plate 8, pellicle mirror 10 lower end holdings are in the bottom of pellicle mirror fixed head 13, pellicle mirror 10 upper ends and diffuser plate fixed head 11 front ends offset, diffuser plate 9 and first group of LED lamp plate 8 are vertical the setting, and their vertical height equates with the vertical height at pellicle mirror 10 two ends.Described second group of LED lamp plate 6 is horizontally set, and its two ends are installed in the lower end of pellicle mirror 10 and diffuser plate 9 so that diffuser plate 9, pellicle mirror 10 and second group of LED lamp plate 6 surround the right angle trigonometry shape fall to penetrating interval 20.
The concrete structure scheme of relevant three cover bodies, three cover bodies in its upper, middle and lower are 5,3,1 with coaxial form, from top to bottom be connected and fixed respectively, and be located at the bottom of axis light fixed head, pellicle mirror 10 and the center of second and third and four groups of LED lamp plates 6,4,2 point that hangs down is on same the axis; Described first and second groups of LED lamp plates 8,6 are the red LED lamp plate, and third and fourth group of LED lamp plate 4,2 is respectively green LED lamp plate and blue LDE lamp plate.
Described second and third, the LED diode on four groups of LED lamp plates 6,4,2 sets up separately by two side positions, and between them according to height, angle position, constitute the light tube group of approximate arc shooting.
Described pellicle mirror 10 is 45 degree with the angle of horizontal direction, belongs to the best angle setting of pellicle mirror 10, at this moment reflecting effect the best of pellicle mirror 10.
Operation principle: see shown in Figure 4, during shooting, filming apparatus 23 is arranged on the top of diaphragm 12, first group of LED lamp plate 8 is luminous from the side, sees through diffuser plate 9, shines the pellicle mirror 10 of flat inclined mirror body, but this pellicle mirror removal of images ghost image coating, therefore, most of light is reflexed on the illuminated object 22 by pellicle mirror, and the good coaxial illumination that falls to penetrating is provided; The light of second layer LED lamp plate 6 then shines directly on the object 22, eliminate the lighting dead angle between first group and the 3rd group of LED light, the 3rd group and the 4th group of LED lamp plate 4,2 then provide the low angle illumination of differentiation, embodying object height changes on the photographic images feature, the lighting environment of full angle can be provided, embody AOI detection range characteristics of image 24 better.
Claims (9)
1. coaxial lighting AOI light source device, comprise the axis light fixed head, it is characterized in that, also include diffuser plate (9), pellicle mirror (10), four groups of LED lamp plates (8,6,4,2), last cover (5), middle cover (3) and following cover (1), described four groups of LED lamp plates (8,6,4,2) position is respectively first group of LED lamp plate (8) in order from high to low, second group of LED lamp plate (6), the 3rd group of LED lamp plate (4) and the 4th group of LED lamp plate (2), described diffuser plate (9), pellicle mirror (10) and first group of LED lamp plate (8) are installed in respectively on the axis light fixed head, pellicle mirror (10) is the flat inclined mirror body, first group of LED lamp plate (8) is positioned at pellicle mirror (10) one sides, and being provided with diffuser plate (9) between pellicle mirror (10) and the first group of LED lamp plate (8) is separated by, the spacing of diffuser plate (9) and pellicle mirror (10) constitutes and falls to penetrating interval (20), second, three, four groups of LED lamp plates (6,4,2) be installed in respectively, in, following three cover bodies (5,3,1) on, and on, in, following three cover bodies (5,3,1) is arranged on the below that falls to penetrating interval (20) from high to low in order.
2. according to the described coaxial lighting AOI light source device of claim 1, it is characterized in that, described axis light fixed head comprises pellicle mirror fixed head (13), diffuser plate fixed head (11) and first group of LED lamp plate fixed head (1), pellicle mirror fixed head (13) and first group of LED lamp plate fixed head (1) are vertical plate body, and branch is located at a left side, right both sides, diffuser plate fixed head (11) is horizontal plate body, and be located at the top of first group of LED lamp plate (8), pellicle mirror (10) lower end holding is in the bottom of pellicle mirror fixed head (13), pellicle mirror (10) upper end offsets with diffuser plate fixed head (11) front end, diffuser plate (9) and first group of LED lamp plate (8) are vertical the setting, and their vertical height equates with the vertical height at pellicle mirror (10) two ends.
3. according to claim 1 or 2 described coaxial lighting AOI light source devices, it is characterized in that, described second group of LED lamp plate (6) is horizontally set, its two ends are installed in the lower end of pellicle mirror (10) and diffuser plate (9) so that diffuser plate (9), pellicle mirror (10) and second group of LED lamp plate (6) surround the right angle trigonometry shape fall to penetrating interval (20).
4. according to the described coaxial lighting AOI light source device of claim 3, it is characterized in that three cover bodies in described upper, middle and lower (5,3,1) are with coaxial form, be connected and fixed respectively from top to bottom, and be located at the bottom of axis light fixed head.
5. according to the described coaxial lighting AOI light source device of claim 3, it is characterized in that described pellicle mirror (10) and the center of second and third and four groups of LED lamp plates (6,4, the 2) point that hangs down is on same the axis.
6. according to the described coaxial lighting AOI light source device of claim 1, it is characterized in that described first and second groups of LED lamp plates (8,6) are the red LED lamp plate, third and fourth group of LED lamp plate (4,2) is respectively green LED lamp plate and blue LDE lamp plate.
7. according to the described coaxial lighting AOI light source device of claim 1, it is characterized in that, described second and third, the LED diode on four groups of LED lamp plates (6,4,2) sets up separately by two side positions, and between them according to height, angle position, constitute the light tube group of approximate arc shooting.
8. according to the described coaxial lighting AOI light source device of claim 1, it is characterized in that the top of described pellicle mirror (10) also is provided with diaphragm (12).
9. according to the described coaxial lighting AOI light source device of claim 1, it is characterized in that described pellicle mirror (10) is 45 degree with the angle of horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109131A CN101793358A (en) | 2010-02-05 | 2010-02-05 | Coaxial lighting AOI light source device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010109131A CN101793358A (en) | 2010-02-05 | 2010-02-05 | Coaxial lighting AOI light source device |
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| CN101793358A true CN101793358A (en) | 2010-08-04 |
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| CN201010109131A Pending CN101793358A (en) | 2010-02-05 | 2010-02-05 | Coaxial lighting AOI light source device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936918A (en) * | 2010-09-02 | 2011-01-05 | 东信和平智能卡股份有限公司 | BGA (Ball Grid Array) chip vision detecting system and detecting method thereof |
| CN103076337A (en) * | 2012-12-28 | 2013-05-01 | 罗炳军 | Multiple light source detection device |
| CN103592307A (en) * | 2012-08-17 | 2014-02-19 | 索尼公司 | 3d measuring device, 3d measuring method, program and method of manufacturing substrate |
| CN103697422A (en) * | 2013-12-11 | 2014-04-02 | 江苏大学 | Coaxial lighting AOI (automatic optic inspection) light source device |
| CN104181164A (en) * | 2014-07-21 | 2014-12-03 | 四川祥益智能科技有限公司 | Light source group of online optical detector |
| CN104696900A (en) * | 2015-03-31 | 2015-06-10 | 合肥鑫晟光电科技有限公司 | Light source device and alignment mark photographing recognition system |
| CN105044118A (en) * | 2015-08-17 | 2015-11-11 | 东莞市神州视觉科技有限公司 | AOI light source |
| CN106645161A (en) * | 2016-09-27 | 2017-05-10 | 凌云光技术集团有限责任公司 | Surface defect detecting system and method |
| CN115240538A (en) * | 2022-08-23 | 2022-10-25 | 惠州市瀚达美电子有限公司 | LED backlight source with uniform light distribution for display device |
-
2010
- 2010-02-05 CN CN201010109131A patent/CN101793358A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936918A (en) * | 2010-09-02 | 2011-01-05 | 东信和平智能卡股份有限公司 | BGA (Ball Grid Array) chip vision detecting system and detecting method thereof |
| CN103592307B (en) * | 2012-08-17 | 2018-01-30 | 重机自动化系统有限公司 | Three directional measuring device, three-dimensional measurement method, the manufacture method of program and substrate |
| CN103592307A (en) * | 2012-08-17 | 2014-02-19 | 索尼公司 | 3d measuring device, 3d measuring method, program and method of manufacturing substrate |
| CN103076337A (en) * | 2012-12-28 | 2013-05-01 | 罗炳军 | Multiple light source detection device |
| CN103697422A (en) * | 2013-12-11 | 2014-04-02 | 江苏大学 | Coaxial lighting AOI (automatic optic inspection) light source device |
| CN104181164A (en) * | 2014-07-21 | 2014-12-03 | 四川祥益智能科技有限公司 | Light source group of online optical detector |
| CN104181164B (en) * | 2014-07-21 | 2016-08-24 | 四川祥益智能科技有限公司 | The light sources of online optical detector |
| CN104696900A (en) * | 2015-03-31 | 2015-06-10 | 合肥鑫晟光电科技有限公司 | Light source device and alignment mark photographing recognition system |
| CN105044118A (en) * | 2015-08-17 | 2015-11-11 | 东莞市神州视觉科技有限公司 | AOI light source |
| CN105044118B (en) * | 2015-08-17 | 2018-01-02 | 东莞市神州视觉科技有限公司 | A kind of AOI light sources |
| CN106645161A (en) * | 2016-09-27 | 2017-05-10 | 凌云光技术集团有限责任公司 | Surface defect detecting system and method |
| CN106645161B (en) * | 2016-09-27 | 2020-02-04 | 凌云光技术集团有限责任公司 | Surface defect detection system and method |
| CN115240538A (en) * | 2022-08-23 | 2022-10-25 | 惠州市瀚达美电子有限公司 | LED backlight source with uniform light distribution for display device |
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Open date: 20100804 |